diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/Makefile ./Makefile
--- /usr/ports/net-im/tg_owt/Makefile	1969-12-31 19:00:00.000000000 -0500
+++ ./Makefile	2021-02-07 21:21:34.767401000 -0500
@@ -0,0 +1,59 @@
+# Created by: Henry Hu <henry.hu.sh@gmail.com>
+# $FreeBSD$
+
+PORTNAME=	tg_owt
+PORTVERSION=	0.0.20210207
+CATEGORIES=	net-im
+MASTER_SITES=	https://chromium.googlesource.com/webm/libvpx.git/+archive/:libvpx \
+		https://chromium.googlesource.com/libyuv/libyuv.git/+archive/:libyuv
+DISTFILES=	${LIBYUV_TAGNAME}.tar.gz:libvpx \
+		${LIBVPX_TAGNAME}.tar.gz:libyuv
+EXTRACT_ONLY=	${DISTFILE_DEFAULT}
+
+MAINTAINER=	henry.hu.sh@gmail.com
+COMMENT=	Webrtc library used by telegram-desktop
+
+LICENSE=	BSD3CLAUSE
+LICENSE_FILE=	${WRKSRC}/LICENSE
+
+BUILD_DEPENDS=	alsa-lib>0:audio/alsa-lib \
+		pulseaudio>0:audio/pulseaudio \
+		v4l_compat>0:multimedia/v4l_compat \
+		yasm:devel/yasm
+LIB_DEPENDS=	libavformat.so:multimedia/ffmpeg \
+		libjpeg.so:graphics/jpeg-turbo \
+		libusrsctp.so:net/libusrsctp \
+		libopus.so:audio/opus
+
+USES=		cmake pkgconfig
+USE_GITHUB=	yes
+GH_ACCOUNT=	desktop-app
+GH_PROJECT=	tg_owt
+GH_TAGNAME=	a198773
+
+# libvpx version in src/third_party/libvpx/source/libvpx
+# libyuv verison in src/third_party/libyuv
+LIBYUV_TAGNAME=	ad89006
+LIBVPX_TAGNAME=	5b63f0f
+
+# Disable DCHECKs, otherwise video calls will crash.
+CXXFLAGS+=	-DNDEBUG
+
+CMAKE_OFF=	BUILD_SHARED_LIBS
+
+post-extract:
+	# Extract Git submodules
+	(cd ${WRKSRC}/src/third_party/libyuv && \
+		${EXTRACT_CMD} ${EXTRACT_BEFORE_ARGS} \
+		${_DISTDIR}${LIBYUV_TAGNAME}.tar.gz ${EXTRACT_AFTER_ARGS})
+	(cd ${WRKSRC}/src/third_party/libvpx/source/libvpx && \
+		${EXTRACT_CMD} ${EXTRACT_BEFORE_ARGS} \
+		${_DISTDIR}${LIBVPX_TAGNAME}.tar.gz ${EXTRACT_AFTER_ARGS})
+
+do-install:
+	${INSTALL_DATA} ${BUILD_WRKSRC}/libtg_owt.a ${STAGEDIR}${PREFIX}/lib
+	${MKDIR} ${STAGEDIR}${PREFIX}/lib/cmake/tg_owt
+	${INSTALL_DATA} ${BUILD_WRKSRC}/tg_owtConfig.cmake ${STAGEDIR}${PREFIX}/lib/cmake/tg_owt
+	${INSTALL_DATA} ${BUILD_WRKSRC}/tg_owtTargets.cmake ${STAGEDIR}${PREFIX}/lib/cmake/tg_owt
+
+.include <bsd.port.mk>
diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/distinfo ./distinfo
--- /usr/ports/net-im/tg_owt/distinfo	1969-12-31 19:00:00.000000000 -0500
+++ ./distinfo	2021-02-07 21:21:57.677127000 -0500
@@ -0,0 +1,7 @@
+TIMESTAMP = 1612750917
+SHA256 (ad89006.tar.gz) = 1b4c4b781c89640c65ce67cb04e0acacd3769630eae740457ccfb1b53367a873
+SIZE (ad89006.tar.gz) = 473828
+SHA256 (5b63f0f.tar.gz) = 803ef30f9f3ff7186c1c277808b9b47a2baf79812934ed98629689aee2484c4c
+SIZE (5b63f0f.tar.gz) = 5324151
+SHA256 (desktop-app-tg_owt-0.0.20210207-a198773_GH0.tar.gz) = 999ed345a80e817d82eddda88acc6d5f24dd558debe6434111d0e5ff9bd9fb1f
+SIZE (desktop-app-tg_owt-0.0.20210207-a198773_GH0.tar.gz) = 16153730
diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/files/patch-CMakeLists.txt ./files/patch-CMakeLists.txt
--- /usr/ports/net-im/tg_owt/files/patch-CMakeLists.txt	1969-12-31 19:00:00.000000000 -0500
+++ ./files/patch-CMakeLists.txt	2021-02-07 21:24:18.736076000 -0500
@@ -0,0 +1,46 @@
+--- CMakeLists.txt.orig	2021-02-03 11:42:41 UTC
++++ CMakeLists.txt
+@@ -54,7 +54,6 @@ include(cmake/libopenh264.cmake)
+ include(cmake/libpffft.cmake)
+ include(cmake/librnnoise.cmake)
+ include(cmake/libsrtp.cmake)
+-include(cmake/libusrsctp.cmake)
+ include(cmake/libvpx.cmake)
+ include(cmake/libwebrtcbuild.cmake)
+ include(cmake/libyuv.cmake)
+@@ -88,7 +87,6 @@ if (is_x86 OR is_x64)
+         tg_owt::libpffft
+         tg_owt::librnnoise
+         tg_owt::libsrtp
+-        tg_owt::libusrsctp
+         tg_owt::libvpx
+         tg_owt::libvpx_mmx
+         tg_owt::libvpx_sse2
+@@ -137,6 +135,7 @@ endif()
+ link_openssl(tg_owt)
+ link_ffmpeg(tg_owt)
+ link_opus(tg_owt)
++link_usrsctp(tg_owt)
+ 
+ if (UNIX AND NOT APPLE)
+     link_libalsa(tg_owt)
+@@ -145,6 +144,11 @@ if (UNIX AND NOT APPLE)
+     link_x11(tg_owt)
+ endif()
+ 
++target_include_directories(tg_owt BEFORE PRIVATE $<TARGET_PROPERTY:tg_owt::libabsl,INTERFACE_INCLUDE_DIRECTORIES>)
++target_include_directories(tg_owt BEFORE PRIVATE $<TARGET_PROPERTY:tg_owt::libvpx,INTERFACE_INCLUDE_DIRECTORIES>)
++target_include_directories(tg_owt BEFORE PRIVATE $<TARGET_PROPERTY:tg_owt::libyuv,INTERFACE_INCLUDE_DIRECTORIES>)
++target_include_directories(tg_owt BEFORE PRIVATE "src")
++
+ function(add_sublibrary postfix)
+     add_library(tg_owt_${postfix} OBJECT)
+     init_feature_target(tg_owt_${postfix} ${postfix})
+@@ -2188,7 +2192,6 @@ set(export_targets
+     libpffft
+     librnnoise
+     libsrtp
+-    libusrsctp
+     libvpx
+     ${vpx_export}
+     libwebrtcbuild
diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/files/patch-cmake_external.cmake ./files/patch-cmake_external.cmake
--- /usr/ports/net-im/tg_owt/files/patch-cmake_external.cmake	1969-12-31 19:00:00.000000000 -0500
+++ ./files/patch-cmake_external.cmake	2021-02-07 21:24:18.737128000 -0500
@@ -0,0 +1,16 @@
+--- cmake/external.cmake.orig	2021-02-03 11:42:41 UTC
++++ cmake/external.cmake
+@@ -141,3 +141,13 @@ function(link_x11 target_name)
+         target_link_libraries(${target_name} PRIVATE ${X11_Xtst_LIB})
+     endif()
+ endfunction()
++
++# usrsctp
++function(link_usrsctp target_name)
++    if (TG_OWT_PACKAGED_BUILD)
++        find_package(PkgConfig REQUIRED)
++        pkg_check_modules(USRSCTP REQUIRED usrsctp)
++        target_include_directories(${target_name} PRIVATE ${USRSCTP_INCLUDE_DIRS})
++        target_link_libraries(${target_name} PRIVATE ${USRSCTP_LINK_LIBRARIES})
++    endif()
++endfunction()
diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/files/patch-cmake_libevent.cmake ./files/patch-cmake_libevent.cmake
--- /usr/ports/net-im/tg_owt/files/patch-cmake_libevent.cmake	1969-12-31 19:00:00.000000000 -0500
+++ ./files/patch-cmake_libevent.cmake	2021-02-07 21:24:18.738171000 -0500
@@ -0,0 +1,26 @@
+--- cmake/libevent.cmake.orig	2021-02-03 11:42:41 UTC
++++ cmake/libevent.cmake
+@@ -17,14 +17,13 @@ if (APPLE)
+ else()
+     target_include_directories(libevent
+     PRIVATE
+-        ${libevent_loc}/linux
++        ${libevent_loc}/freebsd
+     )
+ endif()
+ 
+ nice_target_sources(libevent ${libevent_loc}
+ PRIVATE
+     buffer.c
+-    epoll.c
+     evbuffer.c
+     evdns.c
+     event.c
+@@ -32,6 +31,7 @@ PRIVATE
+     evrpc.c
+     evutil.c
+     http.c
++    kqueue.c
+     log.c
+     poll.c
+     select.c
diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/files/patch-cmake_libyuv.cmake ./files/patch-cmake_libyuv.cmake
--- /usr/ports/net-im/tg_owt/files/patch-cmake_libyuv.cmake	1969-12-31 19:00:00.000000000 -0500
+++ ./files/patch-cmake_libyuv.cmake	2021-02-07 21:24:18.739326000 -0500
@@ -0,0 +1,11 @@
+--- cmake/libyuv.cmake.orig	2021-02-03 11:42:41 UTC
++++ cmake/libyuv.cmake
+@@ -126,7 +126,7 @@ else()
+ endif()
+ 
+ target_include_directories(libyuv
+-PUBLIC
++BEFORE PUBLIC
+     $<BUILD_INTERFACE:${libyuv_loc}/include>
+     $<INSTALL_INTERFACE:${webrtc_includedir}/third_party/libyuv/include>
+ )
diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/files/patch-src_rtc__base_byte__order.h ./files/patch-src_rtc__base_byte__order.h
--- /usr/ports/net-im/tg_owt/files/patch-src_rtc__base_byte__order.h	1969-12-31 19:00:00.000000000 -0500
+++ ./files/patch-src_rtc__base_byte__order.h	2021-02-07 21:24:18.740554000 -0500
@@ -0,0 +1,11 @@
+--- src/rtc_base/byte_order.h.orig	2021-02-03 11:42:41 UTC
++++ src/rtc_base/byte_order.h
+@@ -89,7 +89,7 @@
+ #endif  // defined(WEBRTC_ARCH_LITTLE_ENDIAN)
+ 
+ #elif defined(WEBRTC_POSIX)
+-#include <endian.h>
++#include <sys/endian.h>
+ #else
+ #error "Missing byte order functions for this arch."
+ #endif  // defined(WEBRTC_MAC)
diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/files/patch-src_rtc__base_ip__address.cc ./files/patch-src_rtc__base_ip__address.cc
--- /usr/ports/net-im/tg_owt/files/patch-src_rtc__base_ip__address.cc	1969-12-31 19:00:00.000000000 -0500
+++ ./files/patch-src_rtc__base_ip__address.cc	2021-02-07 21:24:18.741636000 -0500
@@ -0,0 +1,10 @@
+--- src/rtc_base/ip_address.cc.orig	2021-02-03 11:42:41 UTC
++++ src/rtc_base/ip_address.cc
+@@ -15,6 +15,7 @@
+ #include <netinet/in_systm.h>
+ #endif
+ #ifndef __native_client__
++#include <sys/types.h>
+ #include <netinet/ip.h>
+ #endif
+ #include <netdb.h>
diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/files/patch-src_rtc__base_physical__socket__server.cc ./files/patch-src_rtc__base_physical__socket__server.cc
--- /usr/ports/net-im/tg_owt/files/patch-src_rtc__base_physical__socket__server.cc	1969-12-31 19:00:00.000000000 -0500
+++ ./files/patch-src_rtc__base_physical__socket__server.cc	2021-02-07 21:24:18.742689000 -0500
@@ -0,0 +1,29 @@
+--- src/rtc_base/physical_socket_server.cc.orig	2021-02-03 11:42:41 UTC
++++ src/rtc_base/physical_socket_server.cc
+@@ -50,6 +50,8 @@
+ #include "rtc_base/null_socket_server.h"
+ #include "rtc_base/time_utils.h"
+ 
++#undef WEBRTC_LINUX
++
+ #if defined(WEBRTC_LINUX)
+ #include <linux/sockios.h>
+ #endif
+@@ -69,7 +71,7 @@ typedef void* SockOptArg;
+ 
+ #endif  // WEBRTC_POSIX
+ 
+-#if defined(WEBRTC_POSIX) && !defined(WEBRTC_MAC) && !defined(__native_client__)
++#if defined(WEBRTC_POSIX) && !defined(WEBRTC_MAC) && !defined(__native_client__) && !defined(__FreeBSD__)
+ 
+ int64_t GetSocketRecvTimestamp(int socket) {
+   struct timeval tv_ioctl;
+@@ -571,7 +573,7 @@ int PhysicalSocket::TranslateOption(Option opt, int* s
+       *slevel = IPPROTO_IP;
+       *sopt = IP_DONTFRAGMENT;
+       break;
+-#elif defined(WEBRTC_MAC) || defined(BSD) || defined(__native_client__)
++#elif defined(WEBRTC_MAC) || defined(BSD) || defined(__native_client__) || defined(__FreeBSD__)
+       RTC_LOG(LS_WARNING) << "Socket::OPT_DONTFRAGMENT not supported.";
+       return -1;
+ #elif defined(WEBRTC_POSIX)
diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/files/patch-src_rtc__base_physical__socket__server.h ./files/patch-src_rtc__base_physical__socket__server.h
--- /usr/ports/net-im/tg_owt/files/patch-src_rtc__base_physical__socket__server.h	1969-12-31 19:00:00.000000000 -0500
+++ ./files/patch-src_rtc__base_physical__socket__server.h	2021-02-07 21:24:18.743795000 -0500
@@ -0,0 +1,11 @@
+--- src/rtc_base/physical_socket_server.h.orig	2021-02-03 11:42:41 UTC
++++ src/rtc_base/physical_socket_server.h
+@@ -12,8 +12,6 @@
+ #define RTC_BASE_PHYSICAL_SOCKET_SERVER_H_
+ 
+ #if defined(WEBRTC_POSIX) && defined(WEBRTC_LINUX)
+-#include <sys/epoll.h>
+-#define WEBRTC_USE_EPOLL 1
+ #endif
+ 
+ #include <array>
diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/files/patch-src_rtc__base_platform__thread__types.cc ./files/patch-src_rtc__base_platform__thread__types.cc
--- /usr/ports/net-im/tg_owt/files/patch-src_rtc__base_platform__thread__types.cc	1969-12-31 19:00:00.000000000 -0500
+++ ./files/patch-src_rtc__base_platform__thread__types.cc	2021-02-07 21:24:18.744883000 -0500
@@ -0,0 +1,43 @@
+--- src/rtc_base/platform_thread_types.cc.orig	2021-02-03 11:42:41 UTC
++++ src/rtc_base/platform_thread_types.cc
+@@ -11,10 +11,14 @@
+ #include "rtc_base/platform_thread_types.h"
+ 
+ #if defined(WEBRTC_LINUX)
+-#include <sys/prctl.h>
+ #include <sys/syscall.h>
+ #endif
+ 
++#ifdef __FreeBSD__
++#include <sys/thr.h>
++#include <pthread_np.h>
++#endif
++
+ #if defined(WEBRTC_WIN)
+ #include "rtc_base/arraysize.h"
+ 
+@@ -38,7 +42,13 @@ PlatformThreadId CurrentThreadId() {
+ #elif defined(WEBRTC_FUCHSIA)
+   return zx_thread_self();
+ #elif defined(WEBRTC_LINUX)
++#if defined(__FreeBSD__)
++  long id;
++  thr_self(&id);
++  return id;
++#else
+   return syscall(__NR_gettid);
++#endif
+ #elif defined(__EMSCRIPTEN__)
+   return static_cast<PlatformThreadId>(pthread_self());
+ #else
+@@ -106,9 +116,7 @@ void SetCurrentThreadName(const char* name) {
+   }
+ #pragma warning(pop)
+ #elif defined(WEBRTC_LINUX) || defined(WEBRTC_ANDROID)
+-  prctl(PR_SET_NAME, reinterpret_cast<unsigned long>(name));  // NOLINT
+-#elif defined(WEBRTC_MAC) || defined(WEBRTC_IOS)
+-  pthread_setname_np(name);
++  pthread_set_name_np(pthread_self(), name);
+ #endif
+ }
+ 
diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/pkg-descr ./pkg-descr
--- /usr/ports/net-im/tg_owt/pkg-descr	1969-12-31 19:00:00.000000000 -0500
+++ ./pkg-descr	2021-02-07 21:18:07.203623000 -0500
@@ -0,0 +1,3 @@
+WebRTC library used by telegram-desktop.
+
+WWW: https://github.com/desktop-app/tg_owt
diff -ruN -x work -x sync-patch.sh -x gen-patch.sh -x update.md -x check-diff.py -x files.bak /usr/ports/net-im/tg_owt/pkg-plist ./pkg-plist
--- /usr/ports/net-im/tg_owt/pkg-plist	1969-12-31 19:00:00.000000000 -0500
+++ ./pkg-plist	2020-10-26 23:23:42.768229000 -0400
@@ -0,0 +1,3 @@
+lib/cmake/tg_owt/tg_owtConfig.cmake
+lib/cmake/tg_owt/tg_owtTargets.cmake
+lib/libtg_owt.a